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[Bug tree-optimization/55213] vectorizer ignores __restrict__
- From: "josh.m.conner at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 29 Nov 2012 22:17:50 +0000
- Subject: [Bug tree-optimization/55213] vectorizer ignores __restrict__
- Auto-submitted: auto-generated
- References: <bug-55213-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55213
--- Comment #4 from Joshua Conner <josh.m.conner at gmail dot com> 2012-11-29 22:17:50 UTC ---
I'm also seeing this same issue in libgfortran's matmul_r8.c, where the inner
loop has an aliasing check even though all of the pointer dereferences are via
restricted pointers. Again, the problem is worse because the aliasing
versioning prevents us from doing vector alignment peeling.